Answers are marked with a '*'.
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CORE
11. ISDN stands for:
a. internal select data nulls
*b. integrated services digital network
c. interval set down next
d. interior sector direct none
e. inferior sector data net
12. Your modem does not respond when you try to dial out. You try another modem on another computer and get the same result. What is the most likely problem?
a. defective modem
b. defective computer
c. software bug
*d. bad phone line
e. virus
13. You have a serial scanner connected to your computer configured to use com3. It is turned on. Your modem is using com1, and you can't dial out. What is the most likely problem?
a. everything should work ok
b. you have an i/o conflict
*c. you have a conflict with IRQ 4
d. you have a loose connection
e. you have a conflict with IRQ 3
14. What is the i/o address for com1?
a. 3e8
b. 3bc
c. 5f8
*d. 3f8
e. 008
15. What is the i/o address for com2?
a. 2vb
*b. 2f8
c. 8f8
d. 330
e. e8e
16. What is the i/o address for com3?
*a. 3e8
b. 345
c. ff8
d. 5e8
e. be8
17. What is the i/o address for com4?
a. 4e7
b. e8e
c. be0
d. cb8
*e. 2e8
18. Before sending data, a modem sends a request to send signal, or RTS.
*a. true
b. false
19. ISDN uses _______________ technology.
*a. only digital
b. digital and analog
c. only analog
d. neither digital nor analog
e. mostly digital
20. A COM port is a _______ port.
a. parallel
*b. serial
c. static
d. multi
e. scsi
